Home / 55,105.68-82,657.80-13,553.04

Finding the Fourth Proportional to 55,105.68, 82,657.80 and 13,553.04

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Solution

The fourth proportional to 55,105.68, 82,657.80 and 13,553.04 is: 20,329.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,105.68 : 82,657.80 = 13,553.04 : x
  2. Step 2: Convert to fraction form
    55,105.68/82,657.80 = 13,553.04/x
  3. Step 3: Cross multiply
    55,105.68x = 82,657.80 × 13,553.04
  4. Step 4: Simplify right side
    55,105.68x = 1,120,264,469.71
  5. Step 5: Solve for x
    x = 1,120,264,469.71/55,105.68
  6. Step 6: Final answer
    x = 20,329.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.